org.jboss.aop.advice
Class PerJoinpointInterceptor

java.lang.Object
  org.jboss.aop.advice.PerJoinpointInterceptor

All Implemented Interfaces:

Interceptor

public class PerJoinpointInterceptor
extends Object
implements Interceptor

Comment

Version:

$Revision: 73173 $

Author:

Bill Burke

Constructor Summary

PerJoinpointInterceptor(AspectDefinition a, Advisor advisor, Joinpoint joinpoint)

Method Summary

static Interceptor	createInterceptor(Advisor advisor, Joinpoint joinpoint, AspectDefinition def)
Interceptor	getAspectInstance(InstanceAdvisor ia)
String	getName() Returns the name of this interceptor.
Object	invoke(Invocation invocation) The single advice contained in the Interceptor.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PerJoinpointInterceptor

public PerJoinpointInterceptor(AspectDefinition a,
                               Advisor advisor,
                               Joinpoint joinpoint)

Method Detail

createInterceptor

public static Interceptor createInterceptor(Advisor advisor,
                                            Joinpoint joinpoint,
                                            AspectDefinition def)
                                     throws Exception

Throws:

Exception

getName

public String getName()

Description copied from interface: Interceptor

Returns the name of this interceptor. This name is unique inside the domain.

Specified by:

getName in interface Interceptor

Returns:

name the name that identifies this interceptor in its domain

invoke

public Object invoke(Invocation invocation)
              throws Throwable

Description copied from interface: Interceptor

The single advice contained in the Interceptor.
To call the next interceptor or advice in the chain, this method must call invocation.invokeNext() method (if there are not elements left to be called in the chain, this method invokes the joinpoint itself). Not doing so means halting the execution of the interceptor chain and, hence, avoiding the execution of the joinpoint. This should be done only when the interceptor must replace the joinpoint execution.

Specified by:

invoke in interface Interceptor

Parameters:

invocation - represents the joinpoint to be intercepted

Returns:

the result value. This value will be returned to the previous interceptor/advice as a result of Invocation.invokeNext(). In case this is the first interceptor in the chain, this value will replace the joinpoint return value in the basis system.

Throws:

Throwable - may throw any exceptions declared by the joinpoint itself. If this exception is not declared and is not a runtime exception, it will be encapsulated in a RuntimeException before being thrown to the basis system.

getAspectInstance

public Interceptor getAspectInstance(InstanceAdvisor ia)